frequencysorter 0.1.0

  • Readme
  • Changelog
  • Installing
  • new48

Frequency Sorter #

A Flutter utility package, written in Dart, sort a list based on number of occurrences of duplicate items in the list;


  • Install the package. Add to pubspec.yaml

    • frequencysorter: 0.1;
  • Import the package

    • import 'package:frequencysorter/frequencysorter.dart';
  • Create reference point, requires two parameters -- List of identifiers and List of items

      List<String> identifier = ['name', 'defValue'];
      FrequencyGenerator fr =
          new FrequencyGenerator(identifier, itemList);
    • Identifier List contains the parameters of nesting in your model, if any
  • Available methods:

    • registerItem(dynamic item) // Takes an item as parameter

      • Add new item to the frequency list. If item already exists, updates the count of the item. Else, adds it to the list
            Ex: fr.registerItem(itemList[itemList.length - 1]);
    • getFrequencyByValue(dynamic value) // Takes a parameter value

      • Get frequency of a particular item in the sorted list. Returns back an integer value, corresponding to the frequency of the item in the list
        Ex: int frequency = fr.getFrequencyByValue(itemList[0]);
    • getSortedList(bool reverse) // Takes a boolean parameter

      • Returns back the list, sorted based on preference. True indicates descending sort, false indicates ascending.
        Ex: List sr = fr.getSortedList(false);
         sr.forEach((element) {
         print('${element['name']['defValue']} - ${element['freq']}')

[0.1.0] - 22nd June 2020. #

  • initial release.

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:

  frequencysorter: ^0.1.0

2. Install it

You can install packages from the command line:

with Flutter:

$ flutter pub get

Alternatively, your editor might support flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:frequencysorter/frequencysorter.dart';
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Learn more about scoring.

We analyzed this package on Jul 11, 2020, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.8.4
  • pana: 0.13.15
  • Flutter: 1.17.5

Analysis suggestions

Package not compatible with SDK dart


  • frequencysorter that is a package requiring null.

Health suggestions

Format lib/frequencysorter.dart.

Run flutter format to format lib/frequencysorter.dart.

Maintenance suggestions

Maintain an example. (-10 points)

Create a short demo in the example/ directory to show how to use this package.

Common filename patterns include main.dart, example.dart, and frequencysorter.dart. Packages with multiple examples should provide example/

For more information see the pub package layout conventions.


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.7.0 <3.0.0
flutter 0.0.0
Transitive dependencies
collection 1.14.12 1.14.13
meta 1.1.8 1.2.2
sky_engine 0.0.99
typed_data 1.1.6 1.2.0
vector_math 2.0.8 2.1.0-nullsafety
Dev dependencies